<template>
  <div>
    <div class="data">
      <div class="searchForm">
        <el-form :inline="true" :model="params" class="demo-form-inline">
          <el-form-item label="品牌名称">
            <el-input
              v-model="params.name"
              placeholder="按品牌名称进行查找"
              class="block"
            ></el-input>
          </el-form-item>
          <el-form-item>
            <el-button
              icon="el-icon-search"
              @click="getList(1)"
              class="block"
            >
              查询
            </el-button>

            <el-button 
             type="primary" 
             icon="el-icon-plus"
              @click="add"
              >增加
            </el-button>
             <el-button
               type="danger"
               icon="el-icon-delete"
               @click="removeMore"
               >批量删除</el-button>
          </el-form-item>
        </el-form>
      </div>
    </div>
    <div class="message">
      <div class="message1">
        <el-table :data="rows" stripe style="width: 100%" @selection-change="handleSelectionChange">
           <el-table-column type="selection" width="55"></el-table-column>
            <el-table-column prop="name" label="品牌名称">
           </el-table-column>
          <el-table-column prop="img" label="logo">
              <template slot-scope="scope">
             <img style="width:50px;height:50px;" v-if="scope.row.img" :src="scope.row.img"/>
          </template>
             </el-table-column>
          <el-table-column prop="sort" label="排序"> </el-table-column>
          <el-table-column prop="banner" label="广告"> </el-table-column>
          <el-table-column prop="status" label="是否启用">
            <template slot-scope="scope">
              <el-switch
                v-model="scope.row.status"
                active-color="#13ce66"
                inactive-color="#ff4949"
                @change="statusChange(scope.row)"
                :active-value="1"
                :inactive-value="0"
              >
              </el-switch>
            </template>
          </el-table-column>
          <el-table-column label="操作" width="320">
            <template slot-scope="scope">
              <el-button type="primary"
               size="mini"
                icon="el-icon-edit"
                style="margin-right:16px"
                @click="edit(scope.row)"
                >编辑</el-button
              >
              <el-popconfirm
                title="确定删除此数据吗"
                @confirm="remove(scope.row)"
              >
                <el-button
                type="danger"
                size="mini" 
                icon="el-icon-delete"
                 slot="reference">删除</el-button>
              </el-popconfirm>
            </template>
          </el-table-column>
        </el-table>
      </div>
    </div>
    <div class="pagination">
      <el-pagination
        @size-change="sizeChange"
        @current-change="getList"
        :current-page="params.pageNum"
        :page-sizes="[5, 10, 100, 200, 300, 400]"
        :page-size="params.pageSize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total"
      >
      </el-pagination>
    </div>
    <el-dialog :title="form._id ? '修改' :'新增'" :visible.sync="dialogFormVisible" width="400px">
      <el-form
        :model="form"
        status-icon
        :rules="rules"
        ref="form"
        label-width="100px"
        class="demo-ruleForm"
      >
       <el-form-item label="品牌名称" prop="name">
              <el-input type="text" v-model="form.name"></el-input>
            </el-form-item>
        <el-form-item label="图片" prop="img">
 <div
            @click="openFile"
            style="
              overflow: hidden;
              width: 100px;
              height: 100px;
              font-size: 32px;
              border: 1px dashed #ccc;
              text-align: center;
              line-height: 100px;
            "
          >
            <img
              style="max-width: 100%; max-height: 100%"
              v-if="form.img"
              :src="form.img"
            />
            <span v-else>+</span>
          </div>
          <input
            ref="file"
            style="display: none"
            multiple
            accept="image/*"
            type="file"
            @change="changeFile"
          />


        </el-form-item>

        <el-form-item label="排序" prop="sort">
          <el-input
            type="text"
            v-model="form.sort"
            autocomplete="off"
          ></el-input>
        </el-form-item>

        <el-form-item label="广告" prop="banner">
          <el-input
            type="text"
            v-model="form.banner"
            autocomplete="off"
          ></el-input>
        </el-form-item>

        <el-form-item label="类型" prop="type">
          <el-select v-model="form.type" placeholder="请选择">
            <el-option
              v-for="type in types"
              :key="type.value"
              :label="type.label"
              :value="type.value"
            ></el-option>
          </el-select>
        </el-form-item>
        <el-form-item>
          <el-button @click="dialogFormVisible = false">取消</el-button>
          <!-- <el-button type="primary" @click="submit">确定</el-button> -->
          <el-button type="primary" @click="submit">确定</el-button>
        </el-form-item>
      </el-form>
    </el-dialog>
  </div>
</template>

<script>
import api from "@/api";
export default {
  name: "shouyeBanner",
  components: {},
  data() {
    return {
      //查询参数
      params: {
        name:"",
        title: "",
        type: "brand",
        pageNum: 1,
        pageSize: 5,
      },
      rows: [],
      total: 0,
      dialogFormVisible: false,
      form: {
        img: "",
        type: "brand",
        url: "",
        title: "",
        _id:0
      },
      rules: {
        name: [{ required: true, message: "品牌不能为空", trigger: "blur" }],
      },
      types: [
        { label: "品牌", value: "brnad" },
        { label: "分类", value: "classify" },
        { label: "商品", value: "peoducts" },
      ],
      selecteds:[]
    };
  },
  methods: {
    //获取列表
    getList(pageNum) {
      if (pageNum) this.params.pageNum = pageNum;
      this.$http({
        url: "/admin/index/brand",
        params: this.params,
      }).then((res) => {
        this.total = res.total;
        this.rows = res.rows;
      });
    },
    //启用停用
    statusChange(row) {
      this.$http({
        url: "/admin/index/brand",
        method: "PUT",
        data: {
          indexId: row._id,
          status: row.status,
        },
      }).then((res) => {
        if (res.errorMsg) {
          this.getList(1);
        }
      });
    },
    //修改pageSize
    sizeChange(pageSize) {
      this.params.pageSize = pageSize;
      this.params.pageNum = 1;
      this.getList(1);
    },
    //新增
    add() {
      //初始化
      this.form={
        img: "",
        type: "brand",
        url: "",
        title: "",
        _id:0
      }
      this.dialogFormVisible = true;
    },
    //修改数据
    edit(row){
      this.form=row
 this.dialogFormVisible = true;
    } ,
       //删除数据
    remove(row) {
      this.$http({
            url: "/admin/index/brand",
            method: "DELETE",
            params: {indexId:row._id}
          }).then((res) => {
            if (!res.errorMsg) {
              this.getList(1);
            }
          });
    },
     handleSelectionChange(rows){
      //存储选中数据
      this.selecteds = rows
    },

     //批量删除
    removeMore(){
      //获取备选中数据
      let checkedRowsPromise = []
      let success = [],fail = []
      for(let i = 0; i< this.selecteds.length; i ++){
       checkedRowsPromise.push(
          new Promise(resovle => {
            let row = this.selecteds[i]
            this.$http({
              url:'/admin/index/brand',
              method:'DELETE',
              params:{indexId:row._id}
            }).then(res => {
              if(!res.errorMsg){
              success.push(row._id)
             }else{
               fail.push(row._id)
             }
             resovle()
            })
          })
        )
      }
      this.$confirm('此操作将删除选中的数据, 是否继续?', '提示', {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        }).then(() => {
          //删除
      Promise.all(checkedRowsPromise).then(() =>{
        this.$message({
          message: `批量删除完成，成功删除${success.length}条数据,删除失败${fail.length}条数据`,
          duration:3000
        });
          this.getList(1)
      })
      })
    },

 changeFile(e) {
      let files = e.target.files;
      let formDate = new FormData();
      formDate.append("file", files[0]);

      this.$http({
        url: "/upload",
        method: "POST",
        data: formDate,
      }).then((res) => {
        var path = res.path.split("\\");
        path = path[0] + "/" + path[1];
        console.log(path);
        if (res.path) this.form.img = api.baseURL + "/" + path;
        console.log(res);
      });
    },
    openFile() {
      let fileElement = this.$refs.file;
      fileElement.click();
    },


    submit() {
      this.$refs.form.validate((valid) => {
        if (valid) {
          this.form.indexId=this.form._id
          this.$http({
            url: "/admin/index/brand",
            method:this.form._id ? 'PUT': "POST",//通过indexId判断是新增还是修改
            data: this.form,
          }).then((res) => {
            if (!res.errorMsg) {
              this.dialogFormVisible = false;
              this.getList(this.form.indexId ? undefined : 1);
            }
          });
        }
      });
    },
  },

  created() {
    this.getList();
  },
  mounted() {},
};
</script>

<style>
.pagination{
  margin-top: 2%;
  margin-left: 3%;
}
</style>
